Messages in this thread | | | Subject | Re: [Resend RFC PATCH V4 13/13] x86/HV: Not set memory decrypted/encrypted during kexec alloc/free page in IVM | From | Dave Hansen <> | Date | Wed, 7 Jul 2021 09:14:28 -0700 |
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On 7/7/21 8:46 AM, Tianyu Lan wrote: > @@ -598,7 +599,7 @@ void arch_kexec_unprotect_crashkres(void) > */ > int arch_kexec_post_alloc_pages(void *vaddr, unsigned int pages, gfp_t gfp) > { > - if (sev_active()) > + if (sev_active() || hv_is_isolation_supported()) > return 0; > > /* > @@ -611,7 +612,7 @@ int arch_kexec_post_alloc_pages(void *vaddr, unsigned int pages, gfp_t gfp) > > void arch_kexec_pre_free_pages(void *vaddr, unsigned int pages) > { > - if (sev_active()) > + if (sev_active() || hv_is_isolation_supported()) > return;
You might want to take a look through the "protected guest" patches. I think this series is touching a few of the same locations that TDX and recent SEV work touch.
https://lore.kernel.org/lkml/20210618225755.662725-5-sathyanarayanan.kuppuswamy@linux.intel.com/
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